Physicochemical properties of the complex oxides in Sm-Ba-Me-Cu-O (Me = Fe, Co) systems

N. E. Volkova; K. M. Deryabina; L. Ya. Gavrilova; V. A. Cherepanov

doi:10.15826/chimtech.2015.2.2.016

Physicochemical properties of the complex oxides in Sm-Ba-Me-Cu-O (Me = Fe, Co) systems

N. E. Volkova, K. M. Deryabina, L. Ya. Gavrilova, V. A. Cherepanov

Abstract

The present work was focused on the studies of crystal structure, oxygen nonstoichiometry, thermal expansion of SmBaCo_2−xCu_xO_6-_δ and SmBaFe_2−xCu_xO_6-_δ. Values of the oxygen content in complex oxides SmBaCo_2‑xCu_xО_6‑_δ were determined over a wide temperature range in air using high temperature thermogravimetry and iodometric titration. Also, chemical stability with respect to Ce_0.8Sm_0.2O_1.9 and Zr_0.85Y_0.15O_1.93 two common solid electrolyte materials used for SOFCs was evaluated.

Keywords

layered perovskites compounds; thermal expansion coefficient; thermogravimetry and iodometric titration

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DOI: https://doi.org/10.15826/chimtech.2015.2.2.016

Copyright (c) 2015 N. E. Volkova, K. M. Deryabina, L. Ya. Gavrilova, V. A. Cherepanov

This work is licensed under a Creative Commons Attribution 4.0 International License.

Chimica Techno Acta, 2014-2024
ISSN 2411-1414 (Online)
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